This PEF Validator facilitates product data collection between a brand and its suppliers.

  • 1- Click on "Select Collection File" to get your Excel file. Then click on "Submit".
  • 2- Your file is being processed, please wait, it may take up to 20 seconds.
  • 3- Your file is automatically downloaded into your computer. The errors and warnings are highlighted with comments.
  • 4- Please fix any errors and resubmit your file.

No file selected
Note: if your file no longer contains errors (orange cells) but still has warnings (yellow cells) and if you have already reviewed these warnings and they do not require correction, you can send the file to collect@crystalchain.io. in response to the e-mails sent to you. Only do this if there are no more errors (= no more orange cells).