Dear Satya
check customizing; check how you have started the import (there are some flags for phrase import showing up in the screen) (check once againb: Phrase Import - Basic Data and Tools (EHS-BD) - SAP Library)
Principly: anything depends more or less on the phrase export. Here you have as "external" keys (like H02)
Looking on tthe other screenshot: system can not creae the key; for keys therd is a number range etc,
Anx this number ranges (internal keys; externaly keys) is may be not set up properly.
Please explain: is this a one and only action? if not: then please use ALE for distrbution of phrases (but as well here you ned to look for phrase customizing). For ongong purposes ALE is a better tool to distribute phrases and content of them
C.B.
PS: only if it is of interest:
Topic of phrase import is not discussed often.
EH&S: To import specification, phrase and releated data from other system
Phrase Export and Impot (CG31)
May be last one could be of interest