Solution : https://service.sap.com/sap/support/notes/1074977 (SAP Service marketplace login required)
Key words : 
terms ehs27bsp15psehs31sp25psehs32sp14psehs2004sp18psehs2005sp11psehs62sp01psbapi_bus1077_changebapi_bus1077_clearbufferbapi_bus1077_createbapi_bus1077_deletebapi_bus1077_savefrombuffer reason, earlier sap releases, customer-specific implementation, prerequisites reasonprerequisitesfor information, advance implementation, symptom component, product safetyyou, specification bapis, correction instructions, support packages
Related Notes : 
       
| 1564132 | Authorization error for class type 100 is issued only once | 
| 1559662 | Unclear message: "Entry in field &1 required" | 
| 1556732 | (B)API may not report old characteristic values after lock | 
| 1555822 | Creating several relationships in a (B)API call | 
| 1537943 | Usage not displayed for restrictive authorizations | 
| 1534533 | BAPI_BUS1077_GETLIST, error CX_SY_DYN_CALL_ILLEGAL_TYPE | 
| 1526269 | EH&S Expert incorrectly displays an error | 
| 1520381 | BAdI messages missing in C1F5_SPECIFICATIONS_READ | 
| 1509009 | (B)API cannot generate sorting for identifiers | 
| 1505911 | API changes referenced value assignments | 
| 1494425 | Delete (B)API deletes inherited value assignment instances | 
| 1492413 | Example programs for specification BAPIs with change no. | 
| 1490665 | Reading specifications takes a long time | 
| 1484936 | Internal system error when copying specifications | 
| 1457612 | Meaningless status values displayed in scope of application | 
| 1439583 | BAPI_BUS1077_CREATE too slow for large amt of packaging data | 
| 1439441 | BAPI msg "Invalid reference value in field &1" has no value | 
| 1438416 | Specifying decimal places for concentrations for components | 
| 1433872 | Slow processing with large no. of value assignment instances | 
| 1414058 | BAPI_BUS1077_CHANGE does not make any changes | 
| 1411237 | Improvements in the specification API | 
| 1388009 | Deleting regulatory lists deletes identifiers | 
| 1379553 | Insufficient selection parameters for BAPI_BUS1077_GETLIST | 
| 1376074 | Specification read API, combination inheritance & reference | 
| 1352887 | BAPI_BUS1077_GETLIST outputs incorrect identifiers | 
| 1335123 | Dialog error message when you submit a locked change number | 
| 1321656 | Data inconsistency when value assgmt instance is inherited | 
| 1320811 | Using the change BAPI to change long texts | 
| 1301213 | Existence check for change numbers | 
| 1292246 | Reading of packaging data with C1E7 cannot be deactivated | 
| 1283732 | Error in read/delete API when several data records entered | 
| 1279642 | Error in specification BAPI and API | 
| 1274197 | Unnecessary locking conflict for inheritance relationships | 
| 1258064 | Error in specification BAPI and specification API | 
| 1247216 | Specification BAPI/API and inheritance: Important notes | 
| 1232352 | API: Error during mass creation of specification data | 
| 1180441 | Existing characteristic data is deleted | 
| 1172118 | No error message for missing unit of measure "1" | 
| 1171686 | API: Missing check for number of user-defined texts | 
| 1155119 | Message "Data was saved" despite termination in exit | 
| 1146662 | EHSS_SPEC_CHECKS, saving of status changes | 
| 1139954 | Message: Value assignment & could not be updated | 
| 1133746 | Irrelevant lock error: Data record is in process | 
| 1111161 | FAQs when you are working with specification BAPIs | 
| 1108229 | Data origin during deletion in ALE | 
| 1071008 | Sample code for AT_SAVE_CHECK of BAdI EHSS_SPEC_CHECKS | 
| 1052775 | Corrections EH&S 2.7B: Support Package 15 | 
| 800918 | Rules for API programming with SAPLC1F2, SAPLC1F5 |