Free tool

MB1: Claim can't be processed. There are multiple fields which need checking.

An NDIA bulk payment request rejection code, from the NDIA’s own guide (December 2025).

MB1

The message

“Claim can't be processed. There are multiple fields which need checking.”

What it means

More than one error was found on the record.

What this tool follows

NDIS myplace provider portal: Bulk payment requests self-help guide for providers (December 2025): Part 3, payment request rejections

General information only, not financial, legal or claiming advice. Always check a claim against the current official documents.

Questions people ask

What does NDIS claim rejection MB1 mean?

MB1: "Claim can't be processed. There are multiple fields which need checking." More than one error was found on the record.

More free tools

See all tools →

NDIS Bulk Claim File Checker

Check a bulk payment CSV against the NDIA format before you upload it. Runs in your browser.

Open the tool

NDIS Invoice Generator

A correctly laid-out NDIS invoice with item numbers, ready to print or save as PDF.

Open the tool

ABA Bank File Checker

Validate an ABA (Cemtex) direct-entry file line by line before it reaches the bank.

Open the tool

Rostery does this for you

Stop working it out by hand

Rostery applies the right price, award rate and rule to every shift, invoice and claim automatically. Book a demo and we’ll show you on your own roster.

Book a demo See the features