Massive upload of data during fieldwork

We are working on the 2022 Census at the fieldwork stage.
We have a holding that has 1000 workers, whose data should be loaded in the corresponding section of the questionnaire. We would like to know if there is a possibility to make the loading of data into the interview that has already been initiated in a massive way, without the need of a manual loading.
I know it could be done by post processing the join , but the idea is that we can visualize the data in the interview from the server.

I tried in TEST to load the data as an assignment, but the system takes it as a different assignment, so I have two interviews for the same ID and this is not desirable.
Do you have any suggestions to give us’?

Survey Solutions rosters can grow up to 200 rows.

Yes, but 5 rosters were created.