Vocabulary Annotation File ‘xxxx’ version ‘0001’ not found on SAP GW Server

You encountered below error message while opening the SAP Fiori application. The error can be captured from the developer tool of web browser.

<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<code>/IWFND/MED/222</code>
<message xml:lang="en">No Vocabulary Annotation File found for 
ID 'C_SITNINSTCEACTYMONITORING_C_VAN' Version '0001'</message>
<innererror>
<application>
<component_id/>
<service_namespace>/IWFND/</service_namespace>
<service_id>CATALOGSERVICE</service_id>
<service_version>0002</service_version>
</application>
<transactionid>79A1ABCC19CA02F0E005F8123E76F809</transactionid>
<timestamp>20201222031146.8943470</timestamp>
<Error_Resolution>
<SAP_Transaction>For backend administrators: use ADT feed reader 
"SAP Gateway Error Log" or run transaction /IWFND/ERROR_LOG on 
SAP Gateway hub system and search for entries with the 
timestamp above for more details</SAP_Transaction>
<SAP_Note>See SAP Note 1797736 for error analysis 
</SAP_Note>
</Error_Resolution>
<errordetails/>
</innererror>
</error>

You can obtain the same error message from the transaction code /n/IWFND/ERROR_LOG.

Solution

1. Login to the SAP system and execute transaction code /n/IWBEP/REG_VOCAN. Search for the Annotation Models and click on the Annotation Model Name. You will get the OData Service Name from the below screen.

2. Next, open transaction code /n/IWFND/MAINT_SERVICE to add the above OData service.

3. Clear the metadata cache by running the below t-codes

• /n/IWFND/CACHE_CLEANUP
• /n/IWBEP/CACHE_CLEANUP

Note

• Load the metadata of OData Service “CATALOGSERVICE” version 2
• Make sure the system alias of CDS service in SPRO settings has unchecked “OData on Backend” check box
• You can ignore this error in error log when you ran the report /UI5/UPD_ODATA_METADATA_CACHE
• In Production System you can run this report daily or after importing transports

Reference

• 2826598 – How to resolve Vocabulary Annotation File ‘xxxxxx’ version ‘0001’ not found?
• 2525434 – Vocabulary Annotation File not found on SAP GW Server
• 2525434 – Vocabulary Annotation File not found on SAP GW Server
• 2775160 – Error /IWFND/MED220 and/or /IWFND/MED170 at My Fiori app for puchasing document approving
• 2558344 – Fiori tile, “Unable to load the data”