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Install the Salesforce CLI by following the steps mentioned here: https://developer.salesforce.com/docs/atlas.en-us.sfdx_setup.meta/sfdx_setup/sfdx_setup_intro.htm
Authorise the source-org (so the org where the data is currently is with the help of the the
sf org login web
command) https://developer.salesforce.com/docs/atlas.en-us.sfdx_cli_reference.meta/sfdx_cli_reference/cli_reference_org_commands_unified.htm#cli_reference_org_login_web_unifiedAuthorise the target-org (so the org where the data should be going)
Install the SFDMU plugin by running
sfdx plugins:install sfdmu
in a terminalMake sure to create two Custom Settings to disable two Triggers on Resource and Resource Type as described here
Disable Resource
andDisable ResourceType
Download and navigate to the export.json
Navigate your Terminal to the folder where the export.json is stored
Run the following command, replace the usernames of the target and the source with the usernames you used to authorise the orgs in step 2 and 3.
sfdx sfdmu:run --sourceusername <SOURCE_USERNAME> --targetusername <TARGET_USERNAME>
Remove the two custom settings that you have just created when the deploy has been completed.