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MobileMap uses separate upload and download actions, rather than Esri’s ‘sync’ functionality when updating data. MobileMap’s upload/download is better suited to poor internet connections and provides better control over data by separating into distance upload and download actions, but has one major difference from Esri’s ‘sync’. In MobileMap, data deleted in a feature service are NOT downloaded as changes. This means that data deleted in InventoryManager, ArcGIS Pro or other tools will still show up in MobileMap even after a download. When deletes must be ‘pulled’ down to MobileMap, it is necessary to re-initialize and re-download to synchronize MobileMap’s data with the data on the Feature Service. Given this limitation, some users choose to use InventoryManager as a read-only tool for data review but not editing, or to use InventoryManager for updates only (no deletes), and use MobileMap for edits or deletes, respectively. Similarly, some users allow editing/deleting in InventoryManager only for a subset of their users (e.g., staff but not contractors).

Trouble with default values in MobileMap or InventoryManager?

If you published your feature service from ArcPro either overwriting and existing service or publishing to a new service from an ArcPro map that was used previously to publish a feature service, try publishing from a fresh ArcPro project and publish to a new feature service not overwriting the existing one. Not ideal, but seems to resolve the issue. Clearing the cache in ArcPro or starting from a fresh map resolves the issue occasionally, but not consistently.

Similarly if you created your feature service by copying the item in AGOL or using ago-assistant to copy the service, it may appear that the defaults were copied, but you are not seeing them in MobileMap or InventoryManager when you create data. Try publishing for a fresh ArcPro project as recommended above.