Record Producer with MRVS not inserting rows into time_card table on submit

[burrapravee]

Hey ServiceNow Community! 👋

I'm a ServiceNow intern and I'm working on a Timesheet Entry Record Producer in the Service Portal
and I'm stuck on getting MRVS data to save into the time_card table.
Would really appreciate some help! 🙏

📌 My Setup:
- Record Producer target table: Time Card [time_card]
- I have a Multi-Row Variable Set (MRVS) with these columns:
✅ Category
✅ Customer
✅ Implementation
✅ Role
✅ Sunday
✅ Monday
✅ Tuesday
✅ Wednesday
✅ Thursday
✅ Friday
✅ Saturday

❗ Problem:
When the user fills in the MRVS rows in the Service Portal and clicks
Submit, the data is NOT getting inserted into the time_card table.
No records are being created at all.it sometimes inserting but with all 0 values

🔍 What I've already checked:
- Business Rules on time_card table ✅
- Script Includes ✅
- Client Scripts on the Record Producer ✅

None of them seem to be causing the issue.

❓ My Questions:

1. What is the correct way to loop through MRVS rows in a Record
Producer script and insert each row as a separate time_card record?

2. Should I use JSON.parse(producer.mrvs_name) or
producer.mrvs_name.getRowCount() approach?

3. Is there anything specific to Service Portal that could be
preventing the insert?

Any working script examples or guidance would be really helpful!
Thank you so much! 😊

[Tanushree Maiti]

Hi @burrapravee 

First check if your browser console is throwing any javascript error. If yes, share that.

Are you using any OOB record producer or it is created by your project team?

Refer:

KB2622355 Rows added to a Multi-Row Variable Set appear Blank on the Platform UI but Display Correct... 

Issues that you did not know about a multi-row variable set

Multirow variable set data missing when submitted through Service Portal 

Inserting empty in custom table(Multi row variable set)