function fromSAPLogonLanguage(sSAPLogonLanguage) {
		let oLanguageTag;
		if (sSAPLogonLanguage && typeof sSAPLogonLanguage === 'string') {
			sSAPLogonLanguage = M_ABAP_LANGUAGE_TO_LOCALE[sSAPLogonLanguage.toUpperCase()] || sSAPLogonLanguage;
			try {
				oLanguageTag = new LanguageTag(sSAPLogonLanguage);
			} catch (e) {
				// ignore
			}
		}
		return [oLanguageTag, sSAPLogonLanguage];
	}
Retrieves a Locale for the given SAP logon language or BCP47 tag.

@param {string} sSAPLogonLanguage
  A SAP logon language, e.g. "ZF" or a BCP47 language tag
@returns {object} An object containing the mapped LogonLanguage and a LanguageTag if created
@private
@since 1.120.0