Using FM's to update QIWL table

I have a .net program which uses RFC function calls to download the inspection lots to LIMS using QIRF_SEND_INSP_REQUIRMENTS function call. The lots get downloaded into LIMS but SENDSTAT field in QIWL table remains blank. I believe it should be A once the lots are downloaded. Is this something that happens automatically once record is pulled using the function call or any configuration needs to be done in SAP?

I also tried with QIRF_SEND_INSP_DATA_FOR_WL2 with input I_IND_SET_BLOCK_INDICATORS. but the records are not getting locked or the SENDSTAT field in QIWL table not getting updated with 'A'.

I have used QIRF_SEND_COMMIT_TO_QM , but no luck.