MandatoryError: currency during Data Migration for Income Tax Slab DocType

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I’m trying to migrate data for the Income Tax Slab DocType, but I’m consistently getting a frappe.exceptions.MandatoryError: [Income Tax Slab, PPh 21 TER Kategori A]: currency error.

I’ve already checked the following things:

  • currency value in my data: The JSON file clearly shows "currency": "IDR".
  • Currency DocType: I have confirmed that “IDR” exists as a valid and Enabled currency in my Frappe instance.

This error is happening during a data import/migration process. Since the currency value is present in my data and is a valid currency in Frappe, I’m at a loss as to why the system is still flagging the field as mandatory and missing.

Could this be a case sensitivity issue, a hidden character, or something else I’m missing? Has anyone else encountered this problem?

Any help or insights would be greatly appreciated. Thank you!

Or is it because

{
  "allow_tax_exemption": 0,
  "amended_from": null,
  "company": "Company",
  "currency": "IDR",
  "disabled": 0,
  "docstatus": 1,
  "doctype": "Income Tax Slab",
  "effective_from": "2025-01-01",
  "modified": "2025-09-17 11:10:17.404103",
  "name": "PPh 21 TER Kategori A",
  "other_taxes_and_charges": [],
  "slabs":

the company name? or currency name? because i migrate to other company? but the currency stays the same