
Hi @Aditya ,
Good days!
What mandatory metadata you said are missing? Could you please give an example? You said you use the Graph Search API, can you provide some screenshots of that process?
There is currently no official statement on this situation.
There is a similar post, you can have a look.
Clarification on File Name Search for Image Files Using SharePoint Search API
If the problem still exists, we need more information on this issue so we can on the right track.
Reference:
Use the Microsoft Search API to query data
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