# \#entities **URL:** https://forum.getodk.org/tag/entities/79.md [Latest](https://forum.getodk.org/latest.md) · [Categories](https://forum.getodk.org/categories.md) · [Tags](https://forum.getodk.org/tags.md) --- ## [A property named "label" in the xlsform cannot be saved to an entity](https://forum.getodk.org/t/a-property-named-label-in-the-xlsform-cannot-be-saved-to-an-entity/58253)
**Author:** [@NMH](https://forum.getodk.org/u/NMH)\ **Replies:** 3\ **Last updated:** [June 11, 2026, 7:54pm UTC](https://forum.getodk.org/t/a-property-named-label-in-the-xlsform-cannot-be-saved-to-an-entity/58253 "2026-06-11T19:54:12Z")
1. What is the issue? Please be detailed. I have a form that creates an entity. One of the form fields (of type “calculate”) is named “label” and should be saved as a property named ‘denomination’ (where \`save\_to\` is se… --- ## [Missing Entity ID with form that can create or update Entities](https://forum.getodk.org/t/missing-entity-id-with-form-that-can-create-or-update-entities/58073)
**Author:** [@mathieubossaert](https://forum.getodk.org/u/mathieubossaert)\ **Replies:** 8\ **Last updated:** [June 4, 2026, 3:10am UTC](https://forum.getodk.org/t/missing-entity-id-with-form-that-can-create-or-update-entities/58073 "2026-06-04T03:10:32Z")
Here's the form Hélène, the entities (ouvrages\_inventories.csv), the rejected submission with error (Required parameter uuid missing.) and a needed csv file -unites\_hydrauliques.csv) ouvrages\_hydrauliques.xlsx (472,5 K… --- ## [Integrating ODK entities in project that has already been launched](https://forum.getodk.org/t/integrating-odk-entities-in-project-that-has-already-been-launched/43778)
**Author:** [@Chato](https://forum.getodk.org/u/Chato)\ **Replies:** 2\ **Last updated:** [May 21, 2026, 8:51pm UTC](https://forum.getodk.org/t/integrating-odk-entities-in-project-that-has-already-been-launched/43778 "2026-05-21T20:51:58Z")
I would like to know if it is possible to easily integrate ODK entities in a project that has already been running for a while. Several pieces of information about a group or entity are rewritten in multiple follow up fo… --- ## [Intermittent entity failure with multiple entity form](https://forum.getodk.org/t/intermittent-entity-failure-with-multiple-entity-form/57984)
**Author:** [@Thalie](https://forum.getodk.org/u/Thalie)\ **Replies:** 9\ **Last updated:** [May 11, 2026, 6:06pm UTC](https://forum.getodk.org/t/intermittent-entity-failure-with-multiple-entity-form/57984 "2026-05-11T18:06:05Z")
1. What is the issue? Please be detailed. A form designed to create one entity (participants, Access all Entities) and update another (consents, Only access own Entities) works as expected most of the time. However, 2 o… --- ## [Are entity metadata available to the form?](https://forum.getodk.org/t/are-entity-metadata-available-to-the-form/58070)
**Author:** [@ahblake](https://forum.getodk.org/u/ahblake)\ **Replies:** 5\ **Last updated:** [May 8, 2026, 5:11am UTC](https://forum.getodk.org/t/are-entity-metadata-available-to-the-form/58070 "2026-05-08T05:11:02Z")
1. What is the issue? Please be detailed. I was attempting to avoid creating extra entity fields, and thought I could access the metadata fields in my form, specifically \_\_createdAt and \_\_updatedAt. I put an instance lo… --- ## [Collect and Central out of sync because of multiple Entity processing](https://forum.getodk.org/t/collect-and-central-out-of-sync-because-of-multiple-entity-processing/58074)
**Author:** [@ahblake](https://forum.getodk.org/u/ahblake)\ **Replies:** 3\ **Last updated:** [May 7, 2026, 2:11am UTC](https://forum.getodk.org/t/collect-and-central-out-of-sync-because-of-multiple-entity-processing/58074 "2026-05-07T02:11:10Z")
I think this is different to what @Thalie & @mathieubossaert are seeing, and it's probably not isolated to multiple entity forms, so please split/merge to a new/different topic as needed, I couldn't find a more relevant… --- ## [Entity creation never occurs after approval when submission also updates an entity](https://forum.getodk.org/t/entity-creation-never-occurs-after-approval-when-submission-also-updates-an-entity/58034)
**Author:** [@fable4003](https://forum.getodk.org/u/fable4003)\ **Replies:** 0\ **Last updated:** [April 30, 2026, 2:51pm UTC](https://forum.getodk.org/t/entity-creation-never-occurs-after-approval-when-submission-also-updates-an-entity/58034 "2026-04-30T14:51:12Z")
1. What is the issue? Please be detailed. Entity lists have an option that requires submissions to be approved before new entities are written. However, when a single submission both: creates a new entity (to a list wi… --- ## [Multiple entity behaviour - difference observed between ODK central and ODK Collect](https://forum.getodk.org/t/multiple-entity-behaviour-difference-observed-between-odk-central-and-odk-collect/57894)
**Author:** [@Thalie](https://forum.getodk.org/u/Thalie)\ **Replies:** 6\ **Last updated:** [March 24, 2026, 6:18pm UTC](https://forum.getodk.org/t/multiple-entity-behaviour-difference-observed-between-odk-central-and-odk-collect/57894 "2026-03-24T18:18:03Z")
1. What is the issue? Please be detailed. While preparing a demo of a data collection flow for clinical trials using ODK (a workflow I have been eager to test now for quite some time and where I aimed to make some progr… --- ## [Create and update Entities from repeats](https://forum.getodk.org/t/create-and-update-entities-from-repeats/55163)
**Author:** [@LN](https://forum.getodk.org/u/LN)\ **Replies:** 40\ **Last updated:** [March 17, 2026, 11:00pm UTC](https://forum.getodk.org/t/create-and-update-entities-from-repeats/55163 "2026-03-17T23:00:35Z")
Developers may be interested in the companion ODK XForms spec proposal. :warning: Updated proposal below! Background Repeats make it possible to capture data about multiple things of the same kind within the context … --- ## [Unique identifier linking an entity to the form that created it?](https://forum.getodk.org/t/unique-identifier-linking-an-entity-to-the-form-that-created-it/50052)
**Author:** [@danbjoseph](https://forum.getodk.org/u/danbjoseph)\ **Replies:** 1\ **Last updated:** [March 7, 2026, 5:30am UTC](https://forum.getodk.org/t/unique-identifier-linking-an-entity-to-the-form-that-created-it/50052 "2026-03-07T05:30:09Z")
What is the best practice for linking an entity to the form that created it? I register a participant and save a subset of the data about them to an entity. I fill out a pre-event survey, selecting their name from a li… --- ## [ODK XForms spec proposal: create and update Entities from repeats or groups](https://forum.getodk.org/t/odk-xforms-spec-proposal-create-and-update-entities-from-repeats-or-groups/55164)
**Author:** [@LN](https://forum.getodk.org/u/LN)\ **Replies:** 4\ **Last updated:** [February 3, 2026, 11:31pm UTC](https://forum.getodk.org/t/odk-xforms-spec-proposal-create-and-update-entities-from-repeats-or-groups/55164 "2026-02-03T23:31:37Z")
See Create and update Entities from repeats for the user-facing functionality and proposed XLSForm spec. :warning: For an expanded version of this spec, see below. The concept We propose adding a well-known meta bloc… --- ## [Reservation System for Non-Literate Workers](https://forum.getodk.org/t/reservation-system-for-non-literate-workers/57230)
**Author:** [@Tyler\_Depke](https://forum.getodk.org/u/Tyler_Depke)\ **Replies:** 2\ **Last updated:** [December 19, 2025, 2:24pm UTC](https://forum.getodk.org/t/reservation-system-for-non-literate-workers/57230 "2025-12-19T14:24:33Z")
I'm not sure what category to put this in so I'm starting here. I have an idea for a workflow that would best be described as a Signup or Reservation System. I did a little searching on the forum but I think those words … --- ## [Conditionally change colour of stroke or marker on map](https://forum.getodk.org/t/conditionally-change-colour-of-stroke-or-marker-on-map/57222)
**Author:** [@seewhy](https://forum.getodk.org/u/seewhy)\ **Replies:** 0\ **Last updated:** [December 17, 2025, 5:21pm UTC](https://forum.getodk.org/t/conditionally-change-colour-of-stroke-or-marker-on-map/57222 "2025-12-17T17:21:09Z")
What high-level problem are you trying to solve? When selecting an entity on a map it would be very useful for this to have a dynamic property based on a value within the entity. Most especially in my case 'last updated… --- ## [Updating and creating entities with one follow-up form](https://forum.getodk.org/t/updating-and-creating-entities-with-one-follow-up-form/45385)
**Author:** [@dast](https://forum.getodk.org/u/dast)\ **Replies:** 17\ **Last updated:** [November 26, 2025, 11:05am UTC](https://forum.getodk.org/t/updating-and-creating-entities-with-one-follow-up-form/45385 "2025-11-26T11:05:56Z")
Hi, I am testing entities for our purposes. To this purpose I have created a form that creates an entity list of the enumerators to replace the .csv file we are using at the moment. This forms works fine and entities a… --- ## [Longitudinal Workflow with Entities](https://forum.getodk.org/t/longitudinal-workflow-with-entities/55220)
**Author:** [@Yakub](https://forum.getodk.org/u/Yakub)\ **Replies:** 3\ **Last updated:** [November 7, 2025, 4:36am UTC](https://forum.getodk.org/t/longitudinal-workflow-with-entities/55220 "2025-11-07T04:36:57Z")
The longitudinal data collection feature in the form of entities was an exciting feature that opened new possibilities in data collection with ODK. I was able to design a workflow using entities and maintain a data coll… --- ## [Grouping forms in Collect / collapsible hierarchy](https://forum.getodk.org/t/grouping-forms-in-collect-collapsible-hierarchy/56756)
**Author:** [@ahblake](https://forum.getodk.org/u/ahblake)\ **Replies:** 1\ **Last updated:** [September 18, 2025, 10:03pm UTC](https://forum.getodk.org/t/grouping-forms-in-collect-collapsible-hierarchy/56756 "2025-09-18T22:03:01Z")
What high-level problem are you trying to solve? This is a kind of half step to improving the Collect UX while entity first is on the back burner. As some app user form assignments get larger, it's more unwieldy to qui… --- ## [Best practices on data structure for entity design - resources?](https://forum.getodk.org/t/best-practices-on-data-structure-for-entity-design-resources/56264)
**Author:** [@ahblake](https://forum.getodk.org/u/ahblake)\ **Replies:** 2\ **Last updated:** [August 16, 2025, 12:30am UTC](https://forum.getodk.org/t/best-practices-on-data-structure-for-entity-design-resources/56264 "2025-08-16T00:30:22Z")
This came to mind from a question @seewhy asked at the recent Insiders call. We have an excellent quick reference for entities from @ktuite, and there's been some showcases & posts that are very useful eg Best Practic… --- ## [Automatically create Entities registered from one form but require approval for another form](https://forum.getodk.org/t/automatically-create-entities-registered-from-one-form-but-require-approval-for-another-form/54930)
**Author:** [@NMH](https://forum.getodk.org/u/NMH)\ **Replies:** 1\ **Last updated:** [May 19, 2025, 10:38pm UTC](https://forum.getodk.org/t/automatically-create-entities-registered-from-one-form-but-require-approval-for-another-form/54930 "2025-05-19T22:38:30Z")
What high-level problem are you trying to solve? I have an entity which can be updated by two forms. One of the forms is created by authorized persons and the entities associated can be created confidently as soon as th… --- ## [How can I update Entities from the same form originally used to register Entities?](https://forum.getodk.org/t/how-can-i-update-entities-from-the-same-form-originally-used-to-register-entities/54907)
**Author:** [@EduardoCM](https://forum.getodk.org/u/EduardoCM)\ **Replies:** 2\ **Last updated:** [May 19, 2025, 1:54pm UTC](https://forum.getodk.org/t/how-can-i-update-entities-from-the-same-form-originally-used-to-register-entities/54907 "2025-05-19T13:54:31Z")
1. What is the issue? Please be detailed. I need to update entities (All the data) from the same form that was used to obtain the information, that is, if someone opens the web form and update data even when the form is… --- ## [Multiple Languages with Entities?](https://forum.getodk.org/t/multiple-languages-with-entities/54824)
**Author:** [@Agrari](https://forum.getodk.org/u/Agrari)\ **Replies:** 0\ **Last updated:** [May 8, 2025, 3:11pm UTC](https://forum.getodk.org/t/multiple-languages-with-entities/54824 "2025-05-08T15:11:49Z")
Hi all, I'm using Entities for the first time, and overall it's working quite nicely. However, I'm running into an issue with multiple language support. In my project, enumerators are deployed to different regions and … --- ## [Sorting entities for use in choice lists](https://forum.getodk.org/t/sorting-entities-for-use-in-choice-lists/47902)
**Author:** [@ahblake](https://forum.getodk.org/u/ahblake)\ **Replies:** 8\ **Last updated:** [April 25, 2025, 3:27am UTC](https://forum.getodk.org/t/sorting-entities-for-use-in-choice-lists/47902 "2025-04-25T03:27:12Z")
1. What is the issue? Please be detailed. I uploaded a list of locations to an entity list, pre sorted in the order I wished the choices to display. The list in Central shows row 1 at the bottom as entry 1, and the las… --- ## [Entities in Repeat Groups](https://forum.getodk.org/t/entities-in-repeat-groups/54509)
**Author:** [@Emalee\_Martin](https://forum.getodk.org/u/Emalee_Martin)\ **Replies:** 1\ **Last updated:** [April 14, 2025, 6:55pm UTC](https://forum.getodk.org/t/entities-in-repeat-groups/54509 "2025-04-14T18:55:31Z")
I am trying to connect two forms using entities. The first form collects household data then uses a repeat to collect individual information for each household member present. Each household member is assigned a barcode … --- ## [Entities offline](https://forum.getodk.org/t/entities-offline/54422)
**Author:** [@Carlos\_Andres\_Sanabr](https://forum.getodk.org/u/Carlos_Andres_Sanabr)\ **Replies:** 7\ **Last updated:** [April 7, 2025, 9:44pm UTC](https://forum.getodk.org/t/entities-offline/54422 "2025-04-07T21:44:11Z")
Hello community. I want to try using offline entities, but I get this error: this is my version of pyxform. What could be happening? --- ## [OpenRosa spec proposal: identify Entity Lists that require approval for creation to support offline clients](https://forum.getodk.org/t/openrosa-spec-proposal-identify-entity-lists-that-require-approval-for-creation-to-support-offline-clients/54298)
**Author:** [@LN](https://forum.getodk.org/u/LN)\ **Replies:** 0\ **Last updated:** [March 24, 2025, 10:53pm UTC](https://forum.getodk.org/t/openrosa-spec-proposal-identify-entity-lists-that-require-approval-for-creation-to-support-offline-clients/54298 "2025-03-24T22:53:48Z")
In Central, an Entity List can require approval in order for Entities to be created from Submissions. This applies only to creation, not to updates (see documentation). This is not currently described in any specificatio… --- ## [OpenRosa spec proposal: support offline Entities](https://forum.getodk.org/t/openrosa-spec-proposal-support-offline-entities/48052)
**Author:** [@LN](https://forum.getodk.org/u/LN)\ **Replies:** 4\ **Last updated:** [March 24, 2025, 10:31pm UTC](https://forum.getodk.org/t/openrosa-spec-proposal-support-offline-entities/48052 "2025-03-24T22:31:14Z")
So far, Entities support in Collect has relied entirely on existing functionality: CSV form attachments, automatic form updates, etc. You can try out experimental support for offline Entities by joining the beta program … --- ## [Entities over 280,000](https://forum.getodk.org/t/entities-over-280-000/54027)
**Author:** [@Iammash](https://forum.getodk.org/u/Iammash)\ **Replies:** 7\ **Last updated:** [March 14, 2025, 10:16pm UTC](https://forum.getodk.org/t/entities-over-280-000/54027 "2025-03-14T22:16:40Z")
1. What is the issue? Please be detailed. I have been excited for entities since they were introduced. And I now have a health project where I would like to use entities. However, the documentation earlier indicated a l… --- ## [How do I create a form to edit existing Entities values?](https://forum.getodk.org/t/how-do-i-create-a-form-to-edit-existing-entities-values/54083)
**Author:** [@Stuart](https://forum.getodk.org/u/Stuart)\ **Replies:** 2\ **Last updated:** [March 12, 2025, 8:43am UTC](https://forum.getodk.org/t/how-do-i-create-a-form-to-edit-existing-entities-values/54083 "2025-03-12T08:43:13Z")
I'm also a bit stumped with updating an entity. As a bit of background we run a vet clinic in Kenya, owners bring their donkeys but don't always have all the information on the first visit so we need to update their det… --- ## [Checking if an Entity Attribute Column Contains a Value](https://forum.getodk.org/t/checking-if-an-entity-attribute-column-contains-a-value/51382)
**Author:** [@Clement](https://forum.getodk.org/u/Clement)\ **Replies:** 2\ **Last updated:** [January 8, 2025, 8:39am UTC](https://forum.getodk.org/t/checking-if-an-entity-attribute-column-contains-a-value/51382 "2025-01-08T08:39:51Z")
Dear community, I want to check if an entity attribute column contains a value. So I basically have a text field where the user enters an account number, and then a subsequent calculate field to search through the same… --- ## [Importing Entity data versioning history via oData feed](https://forum.getodk.org/t/importing-entity-data-versioning-history-via-odata-feed/51746)
**Author:** [@upulpp](https://forum.getodk.org/u/upulpp)\ **Replies:** 2\ **Last updated:** [December 30, 2024, 8:28am UTC](https://forum.getodk.org/t/importing-entity-data-versioning-history-via-odata-feed/51746 "2024-12-30T08:28:52Z")
1. What is the issue? Please be detailed. How we can get versioning history of entity updates through oData feed? Eg. I want to record reservoir head level as an entity and update it via multiple forms. Then I need to … --- ## [What's the best way to break up forms for registering households and their members?](https://forum.getodk.org/t/whats-the-best-way-to-break-up-forms-for-registering-households-and-their-members/51509)
**Author:** [@Carlos\_Andres\_Sanabr](https://forum.getodk.org/u/Carlos_Andres_Sanabr)\ **Replies:** 7\ **Last updated:** [December 27, 2024, 9:18pm UTC](https://forum.getodk.org/t/whats-the-best-way-to-break-up-forms-for-registering-households-and-their-members/51509 "2024-12-27T21:18:32Z")
Hola comunidad actualmente estoy trabajando en un estudio de la situación nutricional en colombia. el formulario como tal son 6 formularios independientes donde en cada uno de ellos debo identificar siempre el hogar (ub… [Next page](https://forum.getodk.org/tag/entities/79.md?match_all_tags=true&page=1&tags%5B%5D=entities)