I'm currently trying to migrate from M1 to M2 using the data migration tool provided by magento. After configuring config.xml and running the command:

php bin/magento migrate:settings --reset vendor/magento/data-migration-tool/etc/opensource-to-opensource/

I receive the following errors:

[2020-02-26 15:27:26][ERROR]: Source documents are not mapped: core_store,core_store_group,core_website
[2020-02-26 15:27:26][ERROR]: Destination documents are not mapped: store,store_group,store_website

I've checked my config for map.xml.dist and I've checked my map.xml.dist for ignoring the documents, so I'm confused and need help.

Anyone pls?

My config.xml changes:

    <database host="" name="somename" user="someuser" password="somepassword"/>
    <database host="" name="somename" user="someuser" password="somepassword"/>


Database m1 screenshot: Database m1 screenshot

Database m2 screenshot: Database m2 screenshot

SOLUTION: Apparently I switched the names between my m1 db name and my m2 db name in my config.xml.

2 Answers 2


Your issues is source_prefix and dest_prefix error.

You add the source prefix.

Open the config.xml file and search the source_prefix and add the your magento 1 database source prefix


<source_prefix>add the magento 1 database prefix</source_prefix>
  • Don't understand. My table_prefix is empty?
    – Daniel
    Feb 26, 2020 at 19:38
  • Please send the your database table screenshot Feb 27, 2020 at 3:51
  • I've added them in the question :)
    – Daniel
    Feb 27, 2020 at 7:16
  • Magento 1 database table image please one new add because I have not understand this images Feb 27, 2020 at 7:29
  • The upper one is my m1 database. I imported my m1 database into the server of where my m2 database is.
    – Daniel
    Feb 27, 2020 at 7:35

Rename Magento 1 table with Magento 2 in map.xml.dist file.

<?xml version="1.0" encoding="UTF-8"?>
<map xmlns:xs="http://www.w3.org/2001/XMLSchema-instance" xs:noNamespaceSchemaLocation="map.xsd">
  • What? Not sure I understand... I have this file. This is my map-stores.xml. Atleast some of it.
    – Daniel
    Feb 27, 2020 at 7:38
  • Add rename in map.xml.dist. Feb 27, 2020 at 8:31

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