I have tried many times to regsiter(pre registration) in journal of number theory of Elsevier publisher , when i put my Personal Keywords i got the below attached error notice , I separated my keywords by semicolons then by coma, However they asked for 5 keywords ,i plugged the required keywords but always the same notice error You "did not enter the required number of Keywords".

"Please use the button below to go back to the Previous Page and enter the missing information"enter image description here.

I checked the Author guide for pre regestration but unfortunately no talking about that personal keywords
enter image description here

Thank you for any help or any comment.

1 Answer 1


It looks like keywords are entered separately, one at a time in a form, not as a list, comma separated or otherwise.

See: Keyword Instructions.

If you entered a long list in the form's box it got confused and sees only one entry.

  • 2
    And generally need to be spelled properly as well...
    – Jon Custer
    Sep 19 at 20:13
  • Thank you so much for your help it fixed now Sep 19 at 20:15

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