Hi ​@EnvAfrinD 

I searched on the title you gave and got this answer below. I also got a link to that IFS documentation. Please check there for more details  

“Based on the official IFS Cloud documentation, the functionality you described appears to refer to the scheduled task "Check in Invoice Report Document" (often phrased as "Check-In of Images" in contexts involving document and image attachment). This is a background database task primarily used in the Supplier Invoice Workflow (SINWOF) module. It enables automated attachment of invoice images or generated documents to supplier invoices, streamlining accounts payable processes by reducing manual intervention.”  

Supplier Invoice Workflow (SINWOF) - Technical Documentation For IFS Cloud