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You'll want to turn your strings into

Date

instances, then you can use the

N/format

module to put them in the correct date format

Do you know how specifically I can implement that? This is currently causing the same error message. var dateFields = ['prevdate']; // extend as needed for (var bodyFieldId in bodyFieldMap) { if (readOnlyFields.indexOf(bodyFieldId) !== -1) { continue; // Skip system-generated fields } var value = bodyFieldMap[bodyFieldId]; // Convert ISO strings to Date objects for valid date fields if (dateFields.indexOf(bodyFieldId) !== -1 && typeof value === "string") { try { log.debug('Date Field', bodyFieldId + ': ' + value); value = format.parse({ value: value, type: format.Type.DATE }); } catch (e) { log.error('Date Field Error', 'Failed to convert ' + bodyFieldId + ': ' + value); } } try { ia.setValue({ fieldId: bodyFieldId, value: value }); } catch (e) { log.error('Body Field Error', 'Failed to set ' + bodyFieldId + ': ' + e.message); } }

it looks like you're just parsing the incoming string into a date object, you need to then format.format that date object into the appropriate format. also I wouldn't just reuse the value variable like that, it should be fine but you're not really saving much so just use a different var with a different name

I tried it, but it is still giving me an error. My code: if (dateFields.indexOf(bodyFieldId) !== -1 && typeof value === "string") { try { log.debug('Date Field', bodyFieldId + ': ' + value); var parsedDate = new Date(value); // Convert ISO string → Date object log.debug('Converted Date', bodyFieldId + ': ' + parsedDate); value = format.parse({ value: value, type: format.Type.DATE }); log.debug('Parsed Date', bodyFieldId + ': ' + value); } catch (e) { log.error('Date Field Error', 'Failed to convert ' + bodyFieldId + ': ' + value); } }

you're using

format.parse

, you need to use

format.format

... I'm not sure how i can simplify the advice more

thanks