Our team made use of them for a conversion to Zoho Books and it failed terribly, which required much internal review and clean up. Do not make use of them sadly, nothing personal.

I used MMC convert to make a copy of my Xero accounts into a new Xero company. It didn't take too long (after a lot of confusion on MMC's part about 2FA), but when I checked my original Xero company a number of changes had been made by MMC. Oddly these were obviously manual errors where MMC had added a number in the reference field of bills but sometimes added it in the name field in error so creating a new billing name. I found all these errors using the history and notes in Xero (thanks Xero!), but these additions did alter my VAT returns (net of zero though but confusing non the less). Fortunately very little else had been adjusted apart from Euro/GBP conversions but these were very small so insignificant. All in all I worry that the mistakes made could have been a lot more significant.

I engaged with MMC-Convert 4 months ago. I have had several online meetings booked which they haven't turned up to. The email correspondence has reduced my confidence in the process. I can highly recommend JET Convert who I have used many times. I had contacted MMC-Convert has this migration is not one of the systems that JET Convert deal with.

I would give MMC Convert 3 stars. 3 stars for jumping in to help us when we needed help urgently. However, I’m withholding the other 2 stars due to the following reasons: Unfinished Work: They left critical tasks undone at the last minute, leaving us in a lurch. Inaccurate Data Matching: Mixing up invoices and payments, resulting in inaccurate age analysis reports for two financial years. It took us two weeks of stress to figure out how to solve this ourselves. For example, old payments from September 2023 were matched with April 2024 invoices. Despite paying an extra $250 for additional work, they stated that "some manual work is required," but then just dropped the ball and left. Excessive Delays: The process took over three weeks, with countless calls and emails every day to ensure the data was matched correctly. While they did complete some of the work, it was far from all of it. My disappointment in an incompetent team that promised they could convert and bring all data to Xero is indescribable. As a new user, this experience was incredibly stressful, and we even considered starting fresh with new accounts. I strongly advise others to avoid using MMC Convert for their data conversion needs.

Not ideal, poor communication, poor quality, took longer than I was told it would, and didn't start the project for about 30 days after I'd paid

Very seamless. I provided them with my desired Chart Of Accounts along with a mapping to my QBO chart, they did the rest. Additionally, i had them move all my attachments. Communicative, professional, and Friendly!