Hi @ArjunYV,
For any partial update on source you can use : update-source | SailPoint Developer Community
If you your source details via api you must identify which attribute contain this filter and use the patch source endpoint to update this attribute :
For example here the body of update source description attribute :
[
{
"op": "replace",
"path": "/description",
"value": "New description"
}
]
Or another pretty simple way is to use SailPoint IdentityNow VS Code Extension Now Available - Announcements - SailPoint Developer Community with that plugin, you can update all your source information by editing a json file.